A solid tool overall, but its usefulness is limited in my case. I have two accounts (personal and work) and there's no way to switch between them directly from the plugin. I have to open the desktop app to do it, which defeats the speed advantage of having a browser extension. Adding account switching to the plugin would make it much more practical for users with multiple accounts.

As a paid user of Proton's services, I find this mostly excellent. There are three annoying limitations at this time:

1. It is dependent on password and TOTP rather than supporting passkey authentication to log into the extension.

2. Its SimpleLogin alias notes don't sync to the alias description at SimpleLogin.

3. It won't offer to save credentials after you submit them, only before. So you might save credentials that are rejected. If you don't save them, the list of generated passwords isn't the easiest to discover.

Far from perfect. It is not very consistent, sometimes it fails to capture the username, sometimes the password in quite a few websites: about 1 in 10 websites has some kind of problem, my bank (piraeusbank.gr), my Camscanner login (v4.camscanner .com) and politico.eu login page, among others. In the case of politico.eu, the login would completely fail: I couldn't login at all unless I uninstalled the add-on. I have reported these pages, but nothing happened.

I installed Proton Pass because I wasn't happy with Firefox's default password manager either, but since it isn't perfect, I don't see what the advantage is over the (also not perfect) Firefox default password manager: all that changes is which websites don't work. I suspect my problems are Kubuntu Firefox-specific, but the result doesn't change. I'll return to Firefox default password manager for now

I have 1.33.2. Why new 1.34.2 requires new permission: "Access browser activity during navigation" ?

Sometimes doesn't save password or comes up when logging in

+
always reliably present
easy to fill form fields
easy to save new access information
-
only the top level domain is saved, not the whole URL, which disqualifies this add-on for webdesigners & co who need to distinguish between back-end, front-end, update panel, database etc

Excellent password/data manager. But when migrating from bitwarden, lastpass, etc, it misses a few key features here and there to be the best

Auto-fill is a mess. Others have solved this - there's no excuse for it not to function on every site. It's not a difficult computer science problem - it just requires that Proton put in the work to make it function. I have no trouble with Bitwarden. Also, where is the damn generate button? I don't always want to generate a PW for Proton Pass. Sometimes I want a PW for something else. The code is in there - surface it to make it easier to get at. In general, I find Proton's security to be excellent but their UI/UX needs a hell of a lot of work. And yes, I pay full freight for DUO and Lumo+.

Great application but what about a keyboard shortcut to autofill like Bitwarden?

Been using this after moving from NordPass and I find it very useful. However it could do with some Credit Card autofill features and a better UX for "Cards" and "Notes". I save notes of importance to ProtonPass but to search for them is a bit painful, serving up logins first.

But all in all, keep developing it out, it's nearly perfect

Proton products are good but the lack of tech support and the fact a lot of their wording is rather vague on what they offer in their paid packages keep me from supporting them wholeheartedly.

Requires a constant internet connection.

Takes some janking around to get it working on Linux. The plugin often has to be accessed from the top menu of the browser for it to activate and work. Lots of work-arounds required to make it function, but it does work.

Autofills passwords, lacking in authentication options, the ability to use the extra password already associated with my account, as opposed to a pin or nothing, before each autofill, would increase my rating greatly

It's okay. It does the job, but it's got a long way to go before it can replace the likes of Bitwarden.

Good.
Integrated email alias feature is very good, this why I switched from 1Password to Proton, but some features are missing (autocomplete credit cards, saving a key (and not a only a login/password), ...)